Freeze rigidbody position in script

For others finding this if you want to freeze all constraints i think you can just do this... Rigidbody rb; rB.constraints = RigidbodyConstraints.FreezeAll; and then if you want to unfreeze rotacion i think you could do this rB.freezeRotation = false;

Is there any way of doing this in JavaScript?

THIS WORKED PERFECT FOR ME i want my gameobject's collider set to trigger because i want the player to collect it using the ontriggerEnter2d function, but i still want this gameobject to fall to the ground once instantiated so i decided to freeze it's Rigidbody2D position when it reaches the level of the ground ;

public rigidbody2d BatteryRigid ;

if (transform.position.y<=(-3.2)) {

         **BatteryRigid**.constraints = RigidbodyConstraints2D.FreezePosition;


     }